Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
va dinh » van dinh, va kinh, va tinh
vai cua » hai cua, lai cua, bai cua
ma hoi » xa hoi, ma hoa, me hoi
ve cam » ve cham, ve cac, va cam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang ((ma hoi) OR (mai hoi)). hieu ve cam duc va dinh ((vai cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ((ma hoi) OR (mai hoi)). hieu ve cam duc va dinh ((vai cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ((ma hoi) OR (mai hoi)). hieu ve cam duc va dinh ((vai cua) or (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ((ma hoi) OR (mai hoi)). hieu ve cam duc va dinh ((vai cua) or (dai cua)) te*.